Funding for this research was provided by:
NWO (907-00-217, 91711319)
CMSB and NCSB (NGI/NWO)
Seventh Framework Programme (602633, 602633, HEALTH-F4-2007-201413)
EUROSPAN (018947 LSHG-CT-2006-01947)
Fifth Framework Programme (QLG2-CT-2002-01254)
Received: 2 April 2021
Accepted: 10 November 2021
First Online: 24 November 2021
: The study was approved by the medical ethics committee of Erasmus University Medical Centre. All subjects provided written informed consent prior to the study.
: Not applicable.
: The authors declare that they have no competing interests.